相反转法水性环氧树脂的制备  

Preparation of water-based epoxy emulsions by phase inversion emulsification technique

作　　者：李金凤[1] 刘立柱[1,2] 张笑瑞[1] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040 [2]哈尔滨理工大学工程电介质及其应用技术教育部重点实验室,黑龙江哈尔滨150080

出　　处：《化工进展》2015年第9期3388-3391,共4页Chemical Industry and Engineering Progress

基　　金：国家重点基础研究发展计划项目(2012CB723308)

摘　　要：以Span-80和SDS为复合乳化剂,将环氧树脂E-51用相反转法乳化成水包油的稳定乳液。研究了复合乳化剂的亲水亲油平衡值(HLB)、乳化剂的浓度以及乳化温度对环氧树脂E-51相反转点时含水量Rf值、乳液的粒径及粒径分布和乳液离心稳定性的影响,并通过透射电镜(TEM)对乳液粒子的大小、形貌进行表征。结果表明:当复合乳化剂的HLB值为16.2,即Span-80与SDS的质量比为2∶1时,乳化剂的质量分数为9%,乳化温度为50℃时,得到的乳液稳定性最好,乳液粒子大小均匀、粒径分布较窄。The water-based epoxy emulsion was prepared by the phase inversion emulsification technique. Effects of mass ratio,the amount of the mixed emulsifiers,and emulsification temperature, on the properties of the emulsion during the phase inversion process were investigated by particle size analysis,centrifugal sedimentation analysis and water content test. The final morphologies of particles were characterized by TEM. The results show that the optimal emulsion was obtained when the mass ratio of S-80 and SDS was 2：1,the amount of the mixed emulsifiers was 9wt%,and the emulsification temperature was 50℃.

关 键 词：相反转 环氧树脂E-51 小分子表面活性剂 稳定性 

分 类 号：TQ630.49[化学工程—精细化工]